package com.niit.pys.service;





import com.niit.pys.bean.Book;

import java.util.List;

public interface BookService {

    void addBook(Book book);

    void deleteBookById(Integer book_id);

    List<Book> findAllBooks();
    List<Book> findBookByName(String bookName);
    Book findBookByid(String book_id);
}
